Anchor ring



FIG. 1 is a side elevational view of an anchor ring showing my new design;

FIG. 2 is a left end elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a side elevational view thereof, showing the anchor ring in an alternative position. 

The ornamental design for an anchor ring, as shown and described. 